Weekly totals of variants in all locations (by specimen date)
Week 48 49 50 51 52 01 02 03
XFG 1062 898 702 404 163 69 2
NB.1.8.1 301 292 196 108 20 10 3
BA.3.2 62 75 62 49 14 1
Total 1565 1384 1044 629 219 92 10
XFG % 68% 65% 67% 64% 74% 75% 20%
NB.1.8.1 % 19% 21% 19% 17% 9% 11% 30%
BA.3.2 % 4% 5% 6% 8% 6% 1% 0%

Last Updated: 13th January 2026 10:27 GMT — Local:

Growth Charts

Growth chart for XFG
Growth chart for NB.1.8.1
Growth chart for BA.3.2

Acknowledgements

We gratefully acknowledge GISAID and the many data contributors around the world for sharing SARS-CoV-2 sequences.

This analysis makes use of the Nextclade CLI.
Aksamentov, I., Roemer, C., Hodcroft, E. B., & Neher, R. A., (2021). Nextclade: clade assignment, mutation calling and quality control for viral genomes. Journal of Open Source Software, 6(67), 3773, https://doi.org/10.21105/joss.03773

Special thanks to Josette Schoenmakers ( @josetteschoenma.bsky.social on BlueSky @JosetteSchoenma on Twitter) for the table concepts.